Wrapping machine



ct; 3, 1933. J' A LQPEZ 1,929,001

WRAPPING MACHINE Filed July 9, 1929 2 ShetS-Sheet l ai, y j? y jl" J. A. LoPEz WRAPPING MACHINE 2 Sheets-Sheet 2 Filed July 9. 1929 l y// /S Patented Oct. 3, A1933V PATENT*@mcsaj,

UNITED-STATES;

This invention isdirected to an improvement in wrapping machines designed more particularry for venclosing an appropriatenumber of cigarettes or like articles in a wrapper."

.. A 5 f `In machines of this character, the `'cigarettes assembled in proper'relation and in appropriate number are wrapped by enveloping4 about the package thus formed'a paper wrapper which,

through the instrumentalities -ofA the machine, is

- m appropriately folded and the final folds supplied withadhesive, so as to be sealed in position in the nal folding act. f'

'An object of the'present inventionis the pro- 4vision of means by which the nal folds of the ,315 wrapper are, prior to being folded intonal position, supplied with a suitable adhesive in order that such final folds may be sealed inplaceincidenttoand as a result of the folding pressure. In connection with 'the means for applying adr no hesive to the nnal folds Vof the wrapper, the invention contemplated adhesive applying elements whichare intermittently operated toaposition ,to receive a coating of adhesive andv toa position to permit the uniform and regular application 2510isuch coating Atothe appropriate face of V.the

' nal fold oi.' the wrapper. y

The invention is illustrated inthe accompanyingdrawings, in which: Y Figui-e1 is a'view in sideelevation ofthe adhe- -30 sive applyingmechanism.` f i.

Figure 2 is afplan'viewv or the same. v

the saine'ethe applicator beingshown partly in section.' f

' ySeli Figure iis a section online 4 4 of Figure 2, the' ,parts shown in position to apply the adhe- Wrapper is delivered in thehorizontal path of the package to `be wrapped, so that the delivered Asheet or wrapper is moved along with the cigarettes in'package form and such sheet, by various instrumentalitiesforrning no part of the present invention, is wrapped into package 'form' aboutv lthe cigarettes. the wrapping operation,

the wrapper reaches the stage in which the wrapping has been completed except the lfinal folds 55' which are disposed at opposite sides of the Vpack- Fignre 3 is a vertical sectional view throug In wrapping machines ofthe usual type, they ageand," prior `to being vfolded into final position, are tob'e supplied' with' an? adhesive so'that -in such -n'nalfold afsealing completion ofv the foldv The-present invention-deals also with the means 30 for applyingthefadhesive' to thenal folds of the wrapper, vand this part of the invention is illustrated moreparticularly in Figures -1 to 6. As understood andas will be plain-from Figure 6,

the package of cigarettes or like articles, findi-V 65 cated at 41, is completed except for the en d folds 42, and the package-in this form rests upon a.

foldingsupportf43 adapted, in thecompletion of the folding operation, to be elevated by a stand- `ard -44 'operated-by' appropriate mechanism-of the 70v machine. l Y y The` improved-applicator includes a shaft 45 vmounted in standardsA risingV from the frame of 'the machine and located in a *position above and in alignment with the'package ini the A:folded 75 position indicated in Figure. l The lapplicator l proper includes disks 44 7 keyed for longitudinally Vslidingmover-nent in spaced relation on `the shaft '45 `hyk'ey's 48.` These-disks are permitted a-'variety of operatin'g'positions longitudinally ofthe 3Q shaft through the'v medium of latches 49 pivotlatches Ybearing against the hubs of the disks and being held in this bearing positioinby' springs 5l. 85 The` terminals of` the latches are'iormed with, offsets 52 having transverse notches 53. Nor- 'mally,. the disk'sj47bear against the projections 52 but 4by depressing thelatchesfitfis apparent that the `spacing betweenthe'disks mayA be in- `90 creased at will'.v

Each" disk '47 is provided withdiametrically opposed projecting portiorns 5i, these portions being arranged in pairs'and having a linear ydimension substantially coextensive with the fold 42 of the 95 "package The projections 54 are recessed at 55, lthe said recesses lextending through the Vouter free edge ofthe projection and through-the outer `face thereof. The applicators* proper, Ain the form of rubber sections 56, are seated in these 100 recessesandisecured byl an outer' plate 57 held by `orj other fastenings 58. vThe 'applicators proper, Ythat is the rubber sectionsV 56, extend beyond'the free ends of the projections and thus "present a Asomewhatresilient sectionv whichv is 105 used,y as will later appear, to directly` apply theV adhesive material. Y Y

The shaft 45 is intermittently'rotated through 'mechanism more 'particularly illustrated in Figures 2 and 4: This Amechanism includes a :wheel llO Y 59 keyed upon the shaft 45 immediately adjacent one of the uprights 46, this wheel 59 being provided with diametrically opposed pairs of notches 60 adapted to be engaged by a spring-pressed pawl 61 carried by an arm 62 radiating from a jacent the wheel 59.V The Wheel 63 is formed as a pinion 64 inthe portion offset from the arm 62 and the teeth of the pinion are" engaged by a toothed sector 65 on one end of a lever 66 pivotally supported on an arm 67 projecting from one of the uprights 46.` The layer 66 is connected atV the end remote from the pinion 64 wit-h1a pitman, 68 operated by a suitable part ofthe powerVv mechanism of the machinejwhereby the pawl 61 is moved to engage successive'notchesl-in the wheel 59 and thereby impart a step-by-step` vided with a relatively ,fixed'disk 69 formed with `opposed pairs of notches 70.1.A 'spring-pressed plunger 7l,. shaped to cooperate with the notches and mounted in a cylinder 72 Vand carried by -theadjacent upright 46, will serve to insurethat the shaft, ,when moved through-a quarter revolution, will be temporarily held against furtherV movement during then Vsubsequcznt operation'. Of

f course, positive movement ofthe .Wheel 59 bythe 5 mechanism'described will serve to overcome the tension of the spring ,holding the-plunger 71 in locking cooperationxwith y the 6,9 to permit the necessary -movement of... theY shaft and applicatorf 'y i i lAn adhesive tank` isfsupported upon a frame 74 projecting 4fromt'he,uprights46.Y Aroller` 75 is operative on a- ,shaft76y mounted in .theside walls .of the tankand provided atlone'end with va bevel pinion77 engagedV by V a. lbevel pinion 78 carried `on a shaft 79 suitably: driven v.from the powerv mechanism of the machine. VVVAgshait .80

is mounted transverse the tankand a frame including side bars 8171s flxedonsaid shaftimmediately beyond the tank.

Mounted in the terminals ofthe frame bars 81 .is a transverse shaft82`/ on which, between. the yframe bars,is mounted transfer rolls 83, the surface-of which is; appropriately formed forkv the transfer of the adhesive from theroller 75 vto the applicators. 4 The transfer rolls are adjustable longitudinally'of the shaft 82 to Acompensate for adjustment of .the-applicators, it being understood that the transfer rolls are substantially equal in width .to ,thev similar dimensions of the applicatorsA in order todirectly apply the adhesive thereto. )The transfer rolls are positively driven `through the medium of a belt 84 vconnecting rollers 85 and 86, theflrst of which is on the terminal of shaft82f and the second of which is on asleeve mounted for lfree rotationmon the end ofshaft 80, andwhich sleeve includes va pinion 87 in -gear with a pinion-88 fixed on an extension ofshaft76.

r It is, of course, apparent thatthe transfer rolls 83 are moved from a position in contact with the vroller 75 to' a position in which .they may be engagedwith the applicators properinthe rotation of the disksy47; Tosecure Athis result,.an arm .i 5 89 isextendedfrom' one .of the frame bars 81 and provided at its outer end with a lateral pin 90 into; Contact with'the immediately overlying 4apveration may be carriedv out lby any usual or con-'- `ventiofnal instrumentalities, as it forms /nofpart Yof ,the vpresent invention. With the partially folds to 'the otherwise completed wrapper and the t ,per sealed in place.

1..A gum'mingy mechanism for Wrapping-'maf A chines including an applicator mounted'for rotaadapted to seat in a U-shaped terminal 91 at the upper end of a bar 92 which is properly reciprocated through the medium of a connection (not shown) with the power means of the machinewheel 63 loose on the shaft 45 immediately ady A spring 93, secured at one end to a collar 94 fixed on the bar .92, is secured atits opposite end to the pin :91, thus normally holding the arm 8 9 and'bar92 connected While permitting a limited independent and relatively upward movement of the bar 89 tocompensate for contact between the applicators and transfer rolls, as will later appear. .The frame carrying the transfer rolls is projected beyond'the roll shaft, as at 95, with a transverse terminal bar 96 to increase the rigidity 90 of the transfer roll frame.

Y yThe roller 75 is, of course, continuously driven and pickaup the adhesive 97 in tank 73, and afterV passing a scraper 98, which wipes ofi excess adhesive, carries its adhesive coated surface into alpos-tion tope engagedbythe `transfer rolls .83;r The 'movement of bar' 92 is timed `so that when the applicator is in operative position, the bar 92 will l,rave moved the transferwroll carrying.. vframe so that the transfer rolls are in contact with the rroller 75that is in thew'positions indilcated in Figure'lof the drawings'.v ,Y

n It will, of course, be understood that'the transier rolls are positively drivenand'V as the applicai f tor makes its quarter turnv as describedtherbar 92 is moved downwardly, swinging the frame 81 to a position to dispose the-transfer rollsr in the rposition of movement ofthe particular1 applicator 56. Thetran'sfer rolls. are held in this position turn, 'during which the free surfaces of therespective applicators move into contact with the positively driven transfer rolls andY the 'adhesive on the surfaces of these rolls is transferred to the U, free edgesof the applicators.y o 115 It will, of course, be apparent that the path of movement-of the applicators varies from the. path ,of movement ofethetransfer rolls during their applying operation, and under these circume stances, the spring 93 permits thenecessaryand 120 comparatively small upward movement of the transfer rolls and frame to insure a comparatively free movement ofthe. applicatorswhile at the same time maintainingfconstant contact'b'etween 1- the transfer vrolls andthe-applicators. :f .i 25

T When the applicator isin v operative position, as

illustrated in,y Figure 1 the support, 43 vfor the partially folded package is moved upwardly. The iincomplete,folds 42 Vof the Wrapperare .brought fao plicatorsy which have been ,previously charged by contact with the'transfer rolls 83 with the adhesive. Under the contact between'vthe, applicators and incomplete` fold, the adhesive of the.A appli-.ev cators is transferred to the Ainner;sidejof ,such 135 fold, `whereupon the partially Ycompleted'package travels further into the machine .to complete the folding-operation., This succeeding 'folding opcompleted folds-i2 properly suppliedlwith adhesive through the meansof the applicators, the final folding operation insures 'adherence` of these,

wrapping operation is completed and thewrapr'Whatisclaimed to be new ist* ftive movement and an article support mounted for vertical movement to and from the operative plane of the applicator, the applicator including a shaft, means for advancing the' shaft in a step by step movement, and applicating elements slidable on the shaft relative to each other, each of rjacent applying surfaces being at right angles'to each other, and means whereby the elements may be held in desired relatively spaced relation.

3. A gumming mechanism for wrapping machines including an applicator mounted for rotative movement'and an article support mounted for vertical movement to and from the operative plane of the applicator, the applicator including a shaft, means for advancing the shaft in a step by step movement, applicating elements slidable on the shaft relative to eachother, each of the applicator elements being made up of two sets of diametrically opposed applying surfaces, the adjacent applying surfaces beingat right angles to each other, and means whereby the elements may be held in desired relatively spaced relation, said means including spring-pressed levers mounted on the shaft and passing through the center of the elements, `said levers having terminal means to cooperate with the elements for holding the elements in different positions. Y

JOAQUIN ALEMANY LOPEZ. [L.S.]

VY11o 

